Improvement in rose-engines



A. SCHWITTER.

Rose Engine. No. 42,691. Patented May 10, 1864.

UNITED STATES ANTON SCHVVITTER,

ATENT QFFICE.

on NEW YORK, N. Y.

IMPROVEMENT IN RCSE-ENGINES.

To all whom, it may concern.-

Be it known that I, ANTON SGHWITTER, of the city, county, and State of New York, have invented a new and useful Improvement in Engine-Turning Machines 5 and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 represents a plan or top view of a machine,showin g the application of my invention. Fig. 2 is a front elevation of my improved rosette on a larger scale than the previous figure.

Similar letters of referencein-the two views indicate corresponding parts.

This invention relates to an improvement in machines of the class referred to in Letters Patent granted to me September 1, 1863. The rosette, which forms the subject-matter of said patent, is provided with movable blocks or types, which can be adjusted for a great variety of ornaments, and which can also be used to produce what is called the Greek border, bat the adjustment of the movable blocks nec essarily requires some time.

The object of my present invention is a rosette particularly intended for the purpose of producing the Greek border with the least possible loss of time in adjusting said rosette.

The invention consists in the combination of two or more rings, each provided on its periphery with a series of notches to correspond to a certain portion of the ornament to be produced and secured to a common shaft so that they can be brought in any desired relation toward each other and that by the action of the notches on their peripheries the required motion of the cutter is effected and the desired ornament is produced.

To enable others skilled in the artto fully understand and construct my invention, 1 will proceed to describe it.

A represents my improved rosette, which consists of three rings, a b 0, and these rings are secured to the common shaft or core 61 by means of a key, 6, or in any other desirable manner. The core (I is placed on the spindle of the engine-turning machine and made adjustable on the same in the usual manner.

Each of the rings a b c is provided on its periphery with a series of notches to correspond to a certain portion of the Greek border to be produced. The stop f, which governs the motion and position of the tool 71, is

first brought to bear on the circumference of the ring a, when said stop arrives opposite t one of the notches t' in said circumference, the point of the tool comes in contact with the work and the first part, a, of the Greek border is commenced. On passing the notch the stop fstrikes the projection between 6, two notches and the work is forced back from the tool until the stop arrives at the second notch and the second part, a, of the border is commenced, and so forth, until all the parts at a n &c., are finished. The length of these parts in the direction of the axis on which the work rotates is determined by the longitudinal morection of said axis and by the width of the ring a.

When all the parts n a n &c., are finished, the stop is brought opposite the second ring, 12, and the next portion a WM? of the border is commenced and finished like the first portion. The ring b is provided with notches j j ofditferent length, the notchesj to correspond to the parts 11* of the border and the n )tches j to the parts 1). After the portion a p of the border is finished the stop is moved to the third ring 0 and the portion of the border is finished in the same manner as previously described. At this point of the operation the rings a I) 0 have been rotated independent of the work, so that the intervals j on the second ring, I), which previously corresponded to the parts 19 p, &e., of the border will now correspond to the parts 19* p*, and those parts are finished by bringing the stop to bear on the second ring and finally the last portion of the border is finished by returning the stop to the first ling.

It will be observed that by means of this rosette the Greek border can be produced in the simplest and easiest manner, and only a slight change in the positions of the entire rosette is required during the operation.

h at I claim as new, and desire to secure by Letters Patent, is-

A rosette,A, for an en gine-turnin g machine, composed of two or more adjustable notched rings, a b 0, substantially as and for the purpose herein shown and described.

- ANTON SCHWITTER.

Vitnesses Tnos. L. J. DOUGLAS, J. W. CooMns.

tion imparted to the stop and tool in the di- 

